There are two main conditions for dystocia. One is the reason for the ewe, such as the cervix mouth, pelvis, vaginal vulva, etc., narrow, or lack of elasticity, inadequate expansion of the birth canal during delivery, etc., can lead to difficult production of ewes. The second reason - Lamb fetal position is not correct.
There are two kinds of fetus's normal delivery fetuses. One is alive, that is, the lamb's head is clamped between the two forelegs of the birth canal. At the time of delivery, the fetus's two forelegs and the head first go out of the mother's birth canal, and then Two hind legs come out. And the other is the reverse life, that is, two hind legs together and extending to the birth canal, hind legs hanging hoof upward, the back of the fetus and the mother's back in one direction, are upward, when the production of the first two hind legs , And then out of the fetus's head and two front legs. In addition to these two conditions, all other abnormal fetal position.
The most common abnormal fetal position there are three, one is the fetus buttocks in the front; the second is the two legs stretched forward, the head reclined; the third refers to the head has entered the birth canal, but the forelimb bent back. When the lamb's fetal position is abnormal, it must help the lamb to correct the fetal position before it can be born. The so-called correction is to push the Lamb forward and pull it out again.
Understand the reasons for the difficulties of ewe production, determine the scientific rescue program, and carefully handle the lamb, in order to be able to properly solve the embarrassing phenomenon of ewe, to ensure mother and child safety, improve the survival rate of lambs.
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